Apparatus for washing, bleaching, and dyeing artificial silk in hanks or spinning cakes



APPARATUS FOR WASHING, BLEACHING, AND DYEING ARTIFICIAL SILK IN HANKS OR SPINNING GAKES Filed May 8, 1928 Nov. 25, 15930. J. voN DEN DRIESCHV 1,783,103'

f ff e Patented Nov. 25, 1930 UNITED STATES PATENT OFFICE JOSEPH ven EN DRIESCH, oF DRESDEN, GERMANY, ASSIGNOR To THE FIRM ER. KTT- NEE AKTIENGESELLSCHAFT, E PIENA-oN-TIIE-ELEE, GERMANY' APPARATUS EOE wAsHING,-BLEACHING, AND nYEING ARTIFICIAL SILK `1N HANKS'OE l n SPINNING oAKEs in the form of spinning cakes, as taken from Application filed May 8, 1928, Serial No. 276,133, and in Germany April 1d, 1927.

the spinning cansI of the spinning centrifuges in the form of so to speak annularor coreless cross-wound bobbins.

libres' The internal depth betweenthe bottom 'and The object of the invention. is to subject in these forms in large quantities to the acti/on of the treatment liquid acting as uniformly as possible upon all parts ofthe lot with the simplest possible manipulation,

and satisfactory utilization of the treatment liquid, and at the same time absolutely to preventthe bank-like or annular forni of the fibres from being lost and to prevent the fibres themselves from becoming entangled.

The present invention Seeks to attain this object by Aemploying' cages or hurdles adapted to be stacked one above the other, the

the grid-like bottoms thereof in a simple layer sideby side close together, sothat the bottom is covered as completely as possible.

the top of the cage or between two superposed more s ertion, so that the librousstructure can rise and loosen somewhat under. the action of its buoyancy, without losing its form:

The .v flow of the treatment -liquid'may also tend to raise 4or lower .the fibrous structures if the velocity of flow is made sufficiently great, the direction of flow being in that case preferably changed from timeto time. In any case theltreatment liquid is caused to ,iow in a vertical direction through -the cages or hurdles stacked one above the other. If for the purpose of facilitating manipulation or for\the purpose of having a larger quantity" of liquid between each two gratings, the cages or hurdles are made higher .than corresponds to the. condition just considered, special holders should be provided, which restrict the freedom of limit. layers of 4fibrous structures are 4to be degratings should amount to but little than the actual thickness of the inmovement of the brous structures tothe appropriate The individual receptacles for the mentliquids. The lots are lodged in troughs al, a2, as and so forth, vwhich can be conveniently handledby means of rods b, and in particular can be placed upon and moved along a framework c, Vfor the purpose of bringing them successively underneath the spraying nozzles d1, d2, d3- and so forth, which deliver different treatment liquids, such as chemically active baths alternating with rins- .ingwaten The liquids traversing the troughs escape through cocks e into funnels f1, f2, f3 and so forth having pipes connected with them, which convey the liquids awayl into collecting or reviving tanks. In the troughs can be placed the hurdles,which consist of grid bottoms `g and rim-like frames h. Upon the grid bottoms are laid the flattened spinning cakes e, in such a way that they are lin close contact with one anotherl and cover the grid bottom as completely as possible, so as to` constrain the liquid to pass through thelayers of'libres. Since the frames h are of greater depth than corresponds to theV condition just discussed, the-spinning cakes in- Sertedv therein are held down by thick vperforated strips 'L' of Celluloid, the ends of which bending them. VThe grooves h in the border frames enable the hurdles' to beconveniently' manipulated by engaging the tips of the fingers of the hand extending over the margin of the border frame in the said grooves. The perforated cover plate' c is for the purpose of uniformly distributing the liquid flowing out of the Spraying nozzles..

The troughs L can be saved vif the border frameszl are superposed with the interposition of packing's. l

What I claim is l. In an apparatus for liquid treatment of fibrous material in the form of spinning cakes, comprising a framework, a series of spraying devices with nozzles mounted above the framework in spaced relation to each other, the alternate nozzles being adapted for delivering sprays of chemically active liquids and the intermediate nozzles for delivering ,U rinsing liquid; a series of troughs of substantially rectangular cross-section iitting in said framework to register with the nozzles and provided with means for removably supporting them therein, a hurdle in each trough ,5, consisting of alternating grid bottoms and frames stacked on top of each other, perforated strips of flexible material adapted to be sprung into position in horizontal grooves provided therefor in opposite side walls of 2U said frames, said hurdles being so dimensioned that the spinning cakes may be packed tightlyon the bottoms between said side walls and held down by said strips, thereby providing space between each layer of said cakes 3: and the next bottom.

2. In an apparatus as'described in claim l', a perforated cover fitting snugly in each of said troughs and resting on said crate, draining means on each of the troughs and :m receptacles adapted to receive the different liquids separately from the respective draining means, theindividual nozzles of the series of spraying devices being each adapted to deliver chemically active' liquids, suitable re- 35 spectively for washing, bleaching and dyeing treatments of thel librous material.

3. In apparatus as described .in claim l in which the individual nozzles of the series of spraying devices is each adapted to deliver x .40 chemically active liquids suitable for a dii'erlent stage of treatment. e 4. In an apparatus for liquid treatment of fibrous material in the form of spinning cakes, comprising a framework, a series of spraying nozzles mounted above the framework in spaced relation to each other, the alternate nozzles being adapted for delivering sprays of chemically active liquids and the intermediate nozzles for delivering rinsing liquid; a

Cil

'50 series of troughs fitting in said framework to register with the nozzles and provided with means for removably supporting them therein, a hurdle in each trough, perforated strips of-flexible material adapted to be sprung into 55 position in horizontal grooves provided there,- for inopposite side walls of said frames, said hurdles being so dimensioned that the spinning cakes may be packed tightly on the bottoms between said side walls and held down by said strips, thereby providing space between each layer of said cakes and the next bottom.

In testimony whereof I have signed my A name to this specification.

- 6 t JOSEPH VON DEN DIRIESCH. 

